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Waterproof and anti-sedimentation prefabricated inspection well chamber foundation structure and construction method

An anti-subsidence and inspection well technology, which is applied in infrastructure engineering, underwater structures, water conservancy projects, etc., can solve problems such as uneven settlement of the foundation of the well chamber, insufficient compaction of the backfill of the foundation pit of the inspection well, etc., and achieve saving The effect of large investment, high practical value and safe construction process

Pending Publication Date: 2022-03-25
CHINA MCC20 GRP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the above-mentioned defects in the prior art, the present invention provides a waterproof and anti-settling prefabricated inspection well chamber foundation structure to solve the problem of uneven settlement of the well chamber foundation caused by insufficient compaction of the foundation pit of the inspection well

Method used

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  • Waterproof and anti-sedimentation prefabricated inspection well chamber foundation structure and construction method
  • Waterproof and anti-sedimentation prefabricated inspection well chamber foundation structure and construction method
  • Waterproof and anti-sedimentation prefabricated inspection well chamber foundation structure and construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0036] Such as figure 1 with 2 As shown, a waterproof and anti-settlement prefabricated inspection well chamber foundation structure includes a plain soil rammed layer 2, which is arranged at the bottom of the foundation pit 1; a water retaining wall 3, the water retaining wall 3 is arranged on the inner surface of the bottom of the foundation pit 1, and the plain soil tamping layer 2 is laid on the area surrounded by the water retaining wall 3, and a waterproof board 31 is axially arranged on the top of the water retaining wall 3, and the Part of the waterproof board 31 is left in the waterproof wall 3; the graded crushed stone cushion 4 is arranged on the upper surface of the plain soil compacted layer 2, and the top of the graded crushed stone cushion 4 flush with the top of the water retaining wall 3; the well chamber cushion 5, the well chamber cushion 5 is arranged on the top of the area surrounded by the water retaining wall 3, covering the graded crushed stone cushion...

Embodiment 2

[0046] A waterproof and anti-settling prefabricated inspection well chamber foundation structure and construction method, which are basically the same as in Example 1, the difference is that the compaction coefficient of the plain soil rammed layer reaches 0.97, the compacted thickness is 1m, and the retaining wall The enclosed area has a square cross section.

Embodiment 3

[0048] A waterproof and anti-settling prefabricated inspection well chamber foundation structure and construction method, which are basically the same as in Example 1, the difference is that the compaction coefficient of the plain soil rammed layer reaches 0.95, the compacted thickness is 1.5m, and the water retaining The area enclosed by the wall has a circular cross-section.

[0049]To sum up, on the one hand, the present application provides a waterproof and anti-settling prefabricated inspection well chamber foundation structure, including plain soil compacted layer, water retaining wall, graded crushed stone cushion and well chamber cushion. Compared with the traditional well foundation cushion, the water retaining wall can effectively support the well foundation; the water retaining wall and the water retaining plate can effectively block the infiltration of groundwater; the graded crushed stone cushion can A small amount of water is absorbed, infiltrated and slow-releas...

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Abstract

On one hand, the waterproof and anti-sedimentation prefabricated inspection well chamber foundation structure comprises a rammed earth layer, a retention wall, a graded broken stone hardcore and a well chamber hardcore. Compared with a traditional well chamber foundation cushion layer, the retention wall can effectively support a well chamber foundation; the water retaining wall is matched with the water retaining plate, so that permeation of underground water can be effectively blocked; the graded broken stone hardcore can absorb, store, seep and slowly release a small amount of water, and the rammed earth layer is further kept dry and stable. By adopting the structure, a foundation soil body can be fixed, a seepage path can be lengthened, and the waterproof and anti-seepage effects are better. On the other hand, the invention provides a construction method of the well chamber foundation structure, the construction method is low in difficulty, the construction process is safer, and the well chamber foundation can be effectively prevented from settling. According to the technical scheme, related raw materials are easy to obtain, construction is convenient, a large amount of investment of steel bars and concrete materials is saved, the construction and reworking cost is reduced, and the practical value is high.

Description

technical field [0001] The invention relates to the technical field of municipal engineering, in particular to a waterproof and anti-settling prefabricated inspection well chamber foundation structure and a construction method. Background technique [0002] The inspection well is an important component in the underground pipeline of municipal engineering construction, which has an important impact on the performance of urban functions, environmental protection and people's lives. my country's underground pipeline inspection well mainly adopts two methods: brick-built and prefabricated components. At present, in the municipal drainage projects under construction in Xiong'an New District, the inspection wells use a complete set of prefabricated well chambers instead of traditional on-site masonry or pouring operations. Through on-site installation, the construction period can be greatly shortened. The connection between the prefabricated well chamber and the pipeline is usual...

Claims

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Application Information

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IPC IPC(8): E02D29/12E02D27/00E02D17/02E02D29/02E02D31/02
CPCE02D29/12E02D27/00E02D17/02E02D29/02E02D31/02
Inventor 韩宏帅刘亮军谢玉娜马天灏刘树炜
Owner CHINA MCC20 GRP CORP
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